package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.StatusConstant;
import com.sky.dto.CategoryDTO;
import com.sky.dto.CategoryPageQueryDTO;
import com.sky.entity.Category;
import com.sky.mapper.CategoryMapper;
import com.sky.result.PageResult;
import com.sky.service.CategoryService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class CategoryServiceImpl implements CategoryService {

    @Autowired
    private CategoryMapper categoryMapper;

    /**
     * 分页查询
     * @param categoryPageQueryDTO
     * @return
     */
    @Override
    public PageResult pageQuery(CategoryPageQueryDTO categoryPageQueryDTO) {
        //开始分页
        PageHelper.startPage(categoryPageQueryDTO.getPage(),categoryPageQueryDTO.getPageSize());

        Page<Category> page = categoryMapper.pageQuery(categoryPageQueryDTO);

        long total = page.getTotal();
        List<Category> result = page.getResult();

        return new PageResult(total,result);
    }

    /**
     * 新增分类
     * @param categoryDTO
     */
    @Override
    public void save(CategoryDTO categoryDTO) {

        Category category = new Category();
        //对象属性拷贝 BeanUtils.copyProperties(源数据，目标) 属性名保持一致
        BeanUtils.copyProperties(categoryDTO,category);
        //设置分类状态（默认为0，禁用）  常量类表示
        category.setStatus(StatusConstant.DISABLE);

        categoryMapper.save(category);

    }

    /**
     * 修改分类
     * @param categoryDTO
     */
    @Override
    public void updateCategory(CategoryDTO categoryDTO) {

        Category category = new Category();
        //对象属性拷贝 BeanUtils.copyProperties(源数据，目标) 属性名保持一致
        BeanUtils.copyProperties(categoryDTO,category);

        categoryMapper.updateCategory(category);
    }

    /**
     * 禁用或者启用分类
     * @param status
     * @param id
     */
    @Override
    public void status(Integer status, Long id) {

        Category category = Category.builder().status(status).id(id).build();

        categoryMapper.status(category);
    }

    /**
     * 根据id删除分类
     * @param id
     */
    @Override
    public void deleteCategory(Long id) {

        Category category = Category.builder().id(id).build();

        categoryMapper.deleteCategory(category);
    }

    /**
     * 根据类型查询分类
     * @param type
     * @return
     */
    @Override
    public List<Category> list(Integer type) {

        List<Category> list = categoryMapper.list(type);

        return list;
    }


}
